Floor construction



Sepf. 19, 1933. M. ROSENBLUM ET AL 1,927,557

FLOOR CONSTRUCTION Filed Dec. 7, 1931 2 Sheets-Sheet 2 IN VEN TORS /VO/PAP/S POSE/VBL UM Patented Sept. 19, 1933 Morris `-Rose'nblumv and Annette -Rosenlilum, n ,s Brooklyn, vN. Y. i

" vAp'pleatitn 'December 7, 19

" a claims. s (01520-8 This invention relates to improvements in iioorA constructions and has particular reference to a y parquet iooring.

v An object of the invention is to provide an iml 15? proved flooring of simple and practical construction, wherein a plurality of units, each consisting of a series of individual elements assembled and held together without the aid of an adhesive, may be readily and quickly laid upon a floor to cover 10? the same.

The above and other objects will appear more clearly from the following detailed description, when taken in connection'with the accompanying drawings, which illustrate a preferred embodi- K 1.511 ment of the inventive idea.

It will be noted from Figure that the fiooring t of the present invention comprises a plurality of units constituting the main portion of rthe floor and a border extending around the outermost units.

35"- Each unit, which is so constructed as to be capable of complete assemblage before being laid in position, is shown as comprising a plurality of individual elements including two complemental central pieces 6 arranged in intersecting relation and disposed at right angles to each other. Each piece is provided medially of its ends with a transverse groove 7 for receivingfthe reduced portion of the other piece formed by the groove inthe latter so as to form an interlocking joint be- J tween said pieces to maintain one perpendicular to the other. The opposed longitudinal edges ofv elements of the unit.

Offhtloci' sangrante are hasta' breog' of the grooves 8 of the pieces 6 and when the l four blocks 10 of the unit are thus mounted, the

outer sectionsl of .the tongues 11, which are opposed to thoseengaged in the grooves 8, are flush with the extensions 9 of the pieces 6 and combine therewith to form, in effect, a continuous tongue extending around the four assembled blocks. 4 l

'Ihev unit is completed by attaching borderA strips 12, 12 and 13, 13 around the margin of the assembled blocks. The strips 12, 12 Vare similarly constructedand arranged at right angles to each other when in position, each strip having a groove 14 in its inner longitudinal edge to receive the tongues 11 ,and extension 9 along one side of the assembled blocks 10, and also having a tongue 15 along its outer edge-for a purpose to presently appear. Each strip 13, which is opposed to one of the strips 12, is formed ralong its inner and outer longitudinal edges with `grooves 16 and 17, respectively, the former receiving Vthe extension 9 and tongues 11 on the f adjacent side of the assembled blocks 10. The

-ends of all of theborder strips are beveled to provide a close fit and extending diagonally across leach strip adjacent its ends v'are the grooves 18. When the strips are in position, the grooves in the abutting ends of adjacent strips align to form a channel adapted to receive a key an adhesive in any of the grooves of the various With the unit thus constructed and assembled,

e5 A 19 for locking the entire'border of the unit in -f position and thereby dispensing with the use ofv l a plurality thereof may be laid upon a floor with thertongues 15. of the strips -12 inserted into the grooves 17 of the strips 13. Around the outer#- most units of the laid flooring, there isarrangedv a main border which, along each of two -of the 'opposed sides, comprises an inner strip 20 having va tonguek 21 for fitting into thergrooves 17` of they outermost units disposed on said side, and fur-lr each piece 6 are provided throughout their` 59 sections of this tongue extending along two sides thervhaving'a groove 22 `in the opposite edge ,thereof` .Each ofthe other two opposed sides of the flooring is bounded by an inner strip 23 having grooves 24 and 25 in its longitudinal edges, the former groove receiving the tonguesl of the bordering units;

Intermediate main `border same construction, extend around the inner strips 20 and 23 4and are each provided with tongues 27 and 28 on their opposed edges, the former tongue being engageable'in one of the groovesY -22 or 24 of the adjacentinner main border strip.

`strips 26,1all rof 'the'r y The tongues 28 of the strips v26 are, in turn, in-

sertable into grooves 29 inthe inner edges of the outermost border strips 30.v The outer edge of each of the Vlatter strips may also be grooved in order that additional border strips may be laid, if found necessary to complete the flooring.

What is claimed is:

1. A floor unit comprisingelments forming; a

polygon with the elements adjoining one another adjacent vertices of the polygon, a channel Vez);- tending across the upper surface of, and only part Way through, each two adjoining elements adjacent vertices of the polygon, and a AKeil in each channel, said keys serving tovlock said elements together and forming,v part of` the degign of the upper surface of the iioor unit. -V 2. A floor unit comprising elements iormingV a polygon with the elements provided Withmitered' ends and adjoining one another adjacent vertices; of the polygon, a parallel-sided channel extend-` asJ `only Apart Way through,

-ing entirely across the uppersurface of, and'only part Way through, each two adjoining elements Vadjacent vertices of the polygon, and a key tted Vin each channel, said keys serving to lock said elements together and forming part of the devsignor the upper surface `of the oor unit.

3. A oor unit comprising vblock means, border Strips enclosing said block means and forming a sign of the upper surface of the oor unit.

` MORRIS RosENBLUM.

RosENBLUM.

polygon with the strips adjoining one another 

